Incremental acceleration with Imput

Archived Forums Questions & Answers
1

Hey, I’m supernew in Unity… I’m trying to figure how to make a cube move like an ice cube on a tray using the iphone accelerometer. So the trick is that if I increase the angle of inclination the cube has to accelerate incrementally and decelerates if I tilted the device to the opposite side. So far I’m playing with this code from the reference without any luck:

var speed = 10.0;

function Update () {
var dir : Vector3 = Vector3.zero;

dir.x = -Input.acceleration.y;
dir.z = Input.acceleration.x;

if (dir.sqrMagnitude > 1)
    dir.Normalize();

dir *= Time.deltaTime;

transform.Translate (dir * speed);

}

Can someone help me figure it out?

Thanks!

2

have a look at acceleration of object on an inclined plane. You would have to get the inclinaison, I am not familiar with iphone but I guess the engine can return the angle easily.

Then your accelration is

g*sin(ang)
where g is gravity = 9.8

Since it is a block of ice you could ignore friction. If you want to apply it you would to define it and add to the equation.